Message-ID: <2001010511465368199@zetnet.co.uk>
Date: Fri, 5 Jan 2001 11:46:53 GMT
To: rsgb_lf_group@blacksheep.org
From: "Peter Dodd" <g3ldo@zetnet.co.uk>
Subject: LF: Re:  LF Tonight
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Laurie said:

> Jack VE1ZZ has been readability O since 2330 only a little static.
> Still transmitting on 135.922.will stay a little longer.

Jack was also R 'O' here (at the same times as reported by Laurie) 
just using a G3LNP type loop couped to the receiver via a two-turn 
loop and 45m of coax and no amplifier (much to my surprise). The loop 
is set to null Loran -first time I have seen weak signals without Loran lines.

Using Argo beta 1, build 113. 
Argo has an AGC on/off facility; when off minimises very strong 
signals desensitising the soundcard. Laurie is S9+35dB with me on my 
transmitting antenna but I now have a receive system that can monitor 
strong signals yet see the very weak ones at the same time provided 
there is at least 500Hz of separation between the weak and strong signals.

I set the receiver to 136kHz SSB USB. Argo, on 'Full Band View'. The 
band from 136.0 to 137.5kHz can be seen and any signal can be 
selected and zoomed, a wonderful tool for monitoring.
The strong signals from Laurie and Mike, below 136kHz are seen as an 
image folded just above 136kHz; their frequencies can be read off as 
minus 136kHz on the Argo frequency scale.


-- 
Regards, Peter, G3LDO

<g3ldo@zetnet.co.uk>